到达时间[关闭]

Question

New-York: GMT - 5
Chicago: GMT - 6

Time of departure: 07:00 (New-York time); travel time: 02:48.

How do I know at what time I'll be in Chicago? (Chicago time)

I'm sorry that I could not give its decision. Thanks.

Answer 1

You would use a combination of DateTime(), DateInterval(), and DateTimeZone():

$flight = new DateTime('07:00', new DateTimeZone('America/New_York'));
$flight->add(new DateInterval('PT2H48M'));
$flight->setTimeZone(new DateTimeZone('America/Chicago'));
echo $flight->format('h:iA');

1. Create a DateTime() object representing the departure time in New York's timezone
2. Add 2 hours and 48 minutes of flight time
3. Change the timezone to Chicago's timezone
4. Print out the arrival time

Demo